Finding the Fourth Proportional to 20,418,770.44, 28,177,905.84 and 11,126,342
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Solution
The fourth proportional to 20,418,770.44, 28,177,905.84 and 11,126,342 is: 15,354,353.39
Step by Step Solution
- Step 1: Write the proportion equation
20,418,770.44 : 28,177,905.84 = 11,126,342 : x - Step 2: Convert to fraction form
20,418,770.44/28,177,905.84 = 11,126,342/x - Step 3: Cross multiply
20,418,770.44x = 28,177,905.84 × 11,126,342 - Step 4: Simplify right side
20,418,770.44x = 313,517,017,219,637.25 - Step 5: Solve for x
x = 313,517,017,219,637.25/20,418,770.44 - Step 6: Final answer
x = 15,354,353.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.